DDR CORP

CUSIP: 23317H102 Class: COM

SIMPLEX TRADING, LLC's Holding History (CIK: 0001488542)

Note: Option positions (PUT/CALL) are excluded.

Q4 2017
Shares 81,448 Value ($000) $729 Avg Close — Range —
Q1 2017
Shares 56,451 Value ($000) $707 Avg Close — Range —
Q4 2016
Shares 8,865 Value ($000) $135 Avg Close — Range —